Service Manual
2.4 Cooling and Heating Data Sheet in Rated Frequency
C ooling:
Rated cooling
condition(°C)
(DB/WB)
Model
Pressure of gas pipe
connecting indoor and
outdoor unit
Inlet and outlet pipe
temperature of heat
exchanger
Fan speed of
indoor unit
Fan speed of
outdoor unit
Compressor
frequency
(Hz)
Indoor Outdoor P (MPa) T1 (°C) T2 (°C)
27/19 35/24 18K 0.9 to 1.1 12 to 14 75 to 37 Super High High 52
27/19 35/24 24K 0.9 to 1.1 12 to 14 75 to 37 Super High High 72
H eating:
Rated heating
condition(°C)
(DB/WB)
Model
Pressure of gas pipe
connecting indoor and
outdoor unit
Inlet and outlet pipe
temperature of heat
exchanger
Fan speed of
indoor unit
Fan speed of
outdoor unit
Compressor
frequency
(Hz)
Indoor Outdoor P (MPa) T1 (°C) T2 (°C)
20/- 7/6 18K 2.8 to 3.0 70 to 35 2 to 4 Super High High 65
20/- 7/6 24K 2.8 to 3.0 70 to 35 2 to 4 Super High High 77
Instru ctio n:
T1: Inlet and outlet pipe temperature of evaporator
T2: Inlet and outlet pipe temperature of condenser
P: Pressure at the side of big valve
Connection pipe length: 5 or 7.5m.
2.5 Noise Curve
Super
High
Middle Middle
High Middle
High Low
Low
Super
Low
60
58
<
m
T3
56
54
e
0
7
52
50
48
46
Hea
ting
--------
-------
N - Ct
soling
20 30 40 50 60 70 80 90 100
Compressor frequency(Hz)
Indoor fan motor rotating speed
Technical Information % 5